Question

I need help solving this

Answer 1

D) 31

Step-by-step explanation:.

It is a right angle. All right angles equal 90°. So the two angles add up to 90

90= 63 + x - 4

Add 4 to each side

94 = 63 + x

Subtract 63 to each side

31 = x

Answer 2

It's D.

Explanation:

31-4 = 27 , 63 + 27 = 90 :) so the answer's D. 31